Means for cutting plastic substances



1931- i R. D. DELAMERE 1,820,301

MEANSVFOR cu'm'ms PLASTIC sussmu'cns Fud June 28, 1928 i 2 Sheets-Sheet1 In fiwfor. Ru a/o/[ZZDe/amtre.

Aug. 25, 1931. R. n. DELAMERE I MEANS FOR CUTTING PLASTIC SUBSTANCES 2Sheets-Sheet 2 Filed June 28, 1928 1' :1 Men for,

Ruc/o/ Z1 Pe/amerc;

Patented. Aug. 25, '1 931 iszosoi AND WILLIAMS, O1

*MEANS FOR CUTTING Application filed June 2%,

The principal objects of this invention are,

' to facilitate the handling of plastic substances, such as soap orclay, which require to J be sever-ed in uniform lengths from acontinurial to and througha revolving cutter mem-v her, and vrherebvthelongitudinal movement of the. cutter device is utilized to control theoperation of the coinciding mechanisms.

In the drawings, Figure'l is aside eleva tional view of the rigidsupporting frame and the movable carriage a portion of the cuttermechanism being removed from the carriage. I l L V Figure 2 is an.elevational detail of a por tion of the carriage showing the cutterde-' vice in'pl'ace thereon. e I

Fig'ureB an elevational view of the carriage removed from the frame andseen from the opposite side to that shown in Figure 2.

Figure 4 is an elevational detail taken from one end of the frame. p

Figure 5 isan enlarged clevati-on'al and part sectional detail of thecutter device.

In the manufacture or soap the plastic substance is projected fro-i1 thedie of the plodder in the desired longitudinal shape and thecontinuouslyextruded material is o be severed into uniform l-engths ised into the desired form of: cake .iportant to have the amount-ofmaterial ln'each piece of uniform Weight and p I the pins 18.

dimensions; e V

The present invention has been particularly devises to accomplish thisresult and it comprises a frame 1 WhlCll is provided with pairof'paralellyarranged rods 2 adjacent to'the top eirtending lengthwiseo-fthei frame and forming a trackway.

'RUDQLF n; DELAMERE, or rrcaonro, orureero, CANADA, Assi rvcn areDELAMERE ronon'ro, CANADA 1 PLAEZTIG SUBSTANCES 1923. Serial m. 239957;"

Upon'the raclrway are mounted thewheels 3 which are,QOnnected.togetherin pairs and. support the hangerst which carry a rigidframestructure 5. p v i 'The frame formed with a top bar 6 and bevelledend members Tend 8 connecting width the bottombar 9. l

rilrol'ler or belt pulley the juncture of the bars 6 and o A 'Pulleys lland Y12 are m-ount'ed atjeach end 10f bottom bar 9 and a pulley13is'adjustably mounted in a slot 14; at the endfot the barG adjacent tothe end barS. 1

A pulley 15 is mountedbelovv the top: bar'6 adjacent to the adjustablepulley 13;

Dismiss PATENT,

10 is mounted at A plate 16 carrying a boss portion 14 roi;

tatable in the frame 5 and'suitable clamping bolts indicated at '15extend through concen trio slots 16 here shown in'plate 1 6 i'ntothe 1g:

7 "frame 5 and securely clamp the plate 16 in adjusted positions on theframe. The plate 16 carries at its'lowerend between the pulleys 11 and12 we slightly abovethe bottomi bar 9015 the frame; a pulley 17 and apairof roller pins 18 are mounted onthe plate 16 inclo'sely'spacedrciation' above thep'ulley 1'? and in horizontal"alignment with theto'p" surfacescf the pulleys 1O and18. j "A conveyer belt 19 extendsaround the pulj loy, '17 and passing between the roller pins 18 itextends in both directions toward the ends oi the frameiand passesaround the pulleys 10-and 13,thepulley 15 and the pulleys" and i p p Itwill be seen that thetOp stretch of this ,conveyer belt extends trom'theypulley 10 to the nearest of the pins 18 and passing down aroundthopulley 17 it extends around the adjacent pin 18' and then continues in'the} same plane to the pulley '13. The belt thus forms a moving platformto supportthefbar' of plastic material, that is being handled,but aslightfg ap in;

- 'A ,frame QO, here 8 11011711 111 the forniofa the support is madebetween pa'ir'o'f t-para'llelly" arranged crossgarins is' 'n'ioruited onth'e'fpiate'16 and in a position in oblique relation to the gapi'n theconveyer.

Mounted 'interine cliately of the length of r the sidebars oi. the frame20 is a spindle2] v which is operatively connected with the centrestructure of the cutter wheel.

Rollers 22 are mounted in angularly disposed supports at each end of theframe and these bear against the angular faces of the rim 23 of thecutter wheel structure The rim 23 is formed with spur gear teeth 24 onits periphery and a spur pinion 25 mounted transversely in the frame 20meshes with the teeth 24.

A shaft 26 carrying the pinion 25 is provided with a pinion 27 meshingwith a gear 28 carried on a shaft 29 and on this shaft is mounted asprocket wheel 30. I

A sprocket chain 31 connects the sprocket with a sprocket 32 on theouter end of the spindle 21.

This arrangement of gearing is adapted to drive the cutter member fromthe centre and from the rim, both moving in co-ordinated speeds so thatthe fine cutter wires 33 which extend from the rim 23 inwardly and areconnected to the central structure of the wheel will not be required tocarry the load of the su porting rim.

n the centre structure the spindle 21 carries a flange 34 which isprovided with a pair of parallelly arranged pins 35 spaced equidistantfrom the centre.

A bar 36 is slidably mounted on the pins 35 and is provided withinwardly bent ends 37 to which are secured the bracket members 38 whichsupport the inner ends of the cutting wires 33.

Rollers 39 are mounted on the brackets 38 3 adjacent to the ends 37 ofthe bar 36 and these rollers are in the rotation of the cutter memberadapted to engage the cam members 40 which are mounted on the sidemembers of the frame.

The angular position of the frame 20, relative to the movable frame 5,may be adjusted to alter the obliquity of the plane of movement ofthecutter wires which compensates for the movement of the plastic materialduring the cutting operation and effects a substantially true cut atright angles to the longitudinal plane of the bar being severed. Thisadjustment is effected by loosening the clamping bolts 15 and rotatingthe plate 16 on. its hub 14 in the frame 5 to move the frame and cuttercarried thereby to the desired angle, the bolts 15 being again tightenedto retain the cutter securely in this position.

The conveyer belt is arranged in alignment with the cutter wheel betweenthe rim and the central hub portion but the wires swing through thespace arranged between the pins 18.

The arrangement of the cams 40 is such as to move the bar 36 andconsequently the inner ends of the cutter wires relative to the speedof. movement of the plastic bar carried by the conveyer 19. Thismovement of the inner end of the wires is for the purpose of increasingthe angle of obliquity by accelerating the movement of the inner end ofthe wire to compensate for the outer portion which is moving at a highercircumferential rate of speed. The rollers 39 mounted on the bar 36 areheld in contact with the cams by coil springs 41 surrounding the pinsThe driving mechanism of the various parts is all linked together andoperates from the one source which is a small electric motor 42 mountedon the back of the plate 16 and connected with a spur gear arrangedwithin the casing 43.

The shaft 26 is driven by the gear in the casing 43 which in turn drivesthe connections to the cutter member described and through a train ofgears, illustrated in dotted lines in Figure 4, the pulley 17 isoperated to positively drive the conveyer belt 19 at a fixed speed.

The fine wire cuts with a slicing movement and sewers the plastic barwithout any loss whatsoever and as the edges are cut clean there are nounequal surfaces to bind in the die into which the severed piece isultimately passed for moulding.

The carriage formed by the frame 5 supporting the cutter mechanism ismovable on the frame 1 and pivotally connected to one of the axles ofthe wheels 3 is an arm 44 which pivotally connected at its lower end tothe bar 45 of the frame.

Mounted on the arm 4-1 are a plurality of mercury contact tubes 46whic-l') when the arm a l is inclined in one direction closes electriccircuits and when in another po. tic-ii opens said circuits.

A plurality of electric resistance wires "l? are arranged in a suitableenclosure 48 on the frame and the sw'tches a6 are come: ed with theseresistances in such a manner the current flowing to the electric motor42.

The electric motor is of a variable speed type and is ed to oper e theronveyer belt 19 at a speed substantiarly the same as the speed ofdischarge from {he extruder forming a plastic bar to be cut.

In the event of the speed. of the motor decreasing below the speed. ofthe discharge from the extruder, the movement of the plustic bar willcause the frame 5 to be moved longitudinally within the frame 1. Thismovement will swing the arm 44 on its pivot and it will operate one ofthe mercury tube switches to effect an increase in speed of the motor sothat the speed of are conveyer belt will be uniform with that of theplastic bar.

The speed of advance of the extruder varies within certain limits and bythis arrar 'emeut of switches the speed of the conv yor belt may beregulated to alter in hose. limits to ensure the (illll'tlll oi. lengthsof cakes from the bar.

as to vary feedi L ofa frame, a carriage mounted in said frame v'lhemechanism is extremely sensitive, yet

7 itis thoroughly reliableiand byreason of its lsi tlitl mo v ble framefor supporting said ro-,

tata-ble cutter ina position to intersect the path of said-plasticstrip, and means controlled by the longitudinal movement of saidframefor regulating the operationof the machine; 1 V v v I I Means forcutting plastic substances, comprising the con'lbinationwith means forfeeding astrip of plastic material to be cut,v

of a carriage displaceable longitudinally of thefed strip, a conveyormounted on said car-' ria 'e adapted'to receive the moving strip of plmaterial, said conveyor having a gap intermediate of its lengtlnineansfor driving said conveyor, a rotatable cutter supported in a position tocut through theplastic material at the gap in said conveyor, and meansactuhe longitudinal disp'lacementfof said carriage for controlling theconveyer driving meana 3. Meansfm cutting plastic substances,. 1g thecombination with means for co mpr a strip of plastic material to be cut,

and d'placeable longitudinally .of the fed strip, a conveyer mounted 1nsaid carriage and receiving themoving strip of plastic =material, saidconveyor having a gap intermediate of length, means for driving saidconveyor, means for regulating the speed of said driving meansinaccordance withv the longitudinal-displacement of said carriage, and arotatable cutter mounted. on said longitudinally displaceable carriagein position to I operate through thegap insaid'conveyer.

l. Means for cutting plastic substances, comprising the combination withmeans for feeding .astrip-of plastic material tobe cut,

I of a frame, a carriage movablyfmounted in said frame, an endlessconvey-er mounted on,

said carriage and having a gap arranged intermediateof .itsflength. arotary cutter 511".

ranged upon said carriage and operating through said gapto cut the'PlflSlllC material carried by said conveyor, a 'motor operating saidconveyor, and means for. controlling the speed of the motor connected wth said carriage and with said frame and adapted to operate inaccordance with the movement of v the carriage in relation to the frame.

5. lvleaus forv cutting plastic substances,

conn irising the c-ombinaticnwith means for ;feeding stripof plasticmaterial'to'be out,

movable of a frame, a carriage Inovably mountedin said frame, an endlessconveyor mounted on said carriage and havinga gap arranged 1ntermediateofits length, a rotar I cutterarranged upon said carriage an operatingthrough said gap tocutthe plastic material carried by said conveyor, anarm pivotally connected to said frame and operativelyen-l gaging saidcarriageto be swung on its pivot by the movement of the carriage, and aplu-.,

ralityof make and break electlfical contacts operated by the movement ofsaidarm adapted to effect the control of the motor to regiu late thespeed of movement of saidconveyer in accordance with the speedofmovement,

of the plastic material.

6. Means for cutting plastic substances,

comprising the combination: with means for feeding a strip of plasticmaterial to be cut, of a rigid frame having alongitudinal traelg' Way,rollers mounted on said trackway,-a

framesuspended from said rollers. forming a carriage, an

carried by said carriage. and operating through the gap in saidconveyor, an-electric motor operatively connected Withsaid con veyer andsaid cutter, an arm pivotally'con 'nected to the rigid frame and.operatively engaging said carriage and adapted tobe endless conveyormounted on sand frame and havinga'gap intermediate of its length, arotatable cutter swung bythe movement of said carriage, a plural tyofmercury make and break 0011;] acts arrangedon said arm, and means con--riected with said contacts for controllingthcspeed of the motor. 1

7. Means for cutting plastic substances,-

comprising the combination with means-for feeding a strip of plasticmaterial to be cut,- of aframe supported adjacent to said feeding meanslaving a pair of rollers arrangedqin.

horizontal alignment, a, plurality of othcr rollers, a single endlessconveyor belt;eXtend-.

mg around said rollers-having a gap inj its upper length, a frameprojecting laterally from the roller supporting frame, a rotary cuttermounted on; saidlaterally extending frame and, operating transversely ofsaid.

conveyer having its cutting, members ar-'- ranged to pass throughthegapin sa1dco11- veyer, an electric motor carried 'on said frame, andmeans operat1vely connecting said motor with said conveyor belt and withsaidrotary cutter. v I 8. Means for cutting plastic substances,comprising the combination With means for feeding a strip of plasticmaterial to be cut,

of a frame mounted adjacent to said feeding means, an endless conveyorhaving a hori 1 zontal section arranged; w th a-loop therein all aforming a gap, means for driving said conveyer, a frame extendinglaterally from the aforesaid frame, a spindle mounted inthelatter'frame, an arm carried on said spindle, a rim rotatablysupportedon said/frame. and.

comprising the combination with means for feeding a strip of plasticmaterial to be out, of a frame mounted adjacent to said feeding means,an *dless conveyor having a horizontal section arranged with a looptherein forming a gap, means for driving said conveyer, a frameextending laterally from the aforesaid frame, a spindle mounted in thelatter frame, an arm carried on said spindle, a rim rotatably supportedon said frame, cutter wires secured to each end of said arm and to saidrim and adapted to extend through the gap in the conveyer, means forrotating said arm and rim at a synchronized speed, and means forchanging the position of the wires in an axial direction.

10. Means for cutting plastic substances,

'2 comprising the combination with means for feeding a strip of plasticmaterial to be cut, of a frame mounted adjacent to said feeding means,an endless conveyor having a horizontal section arranged with a looptherein forming a gap, means for driving said conveyer, a frameextending laterally from the aforesaid frame, a spindle mounted in thelatter frame, an arm carried on said spindle, a rim rotatably supportedon said extending frame, cutter wires secured to each end of said armand to said rim and adapted to extend through the gap in the conveyor,

means for rotating said arm and rim in a synchronized. speed, cammembers carried on the frame, rollers mounted on the arm c011- nected tosaid cutter wires, and spring means for holding said arm with itsrollers in contact with said cams.

'11. Means for cutting plastic substances, comprising the combinationwith means for feeding a strip of plastic material to be cut, of a framemounted adjacent to said feeding means, an endless conveyor having ahorizontalsection arranged with a loop therein forming a gap, means fordrlving said conveyer, a. frame extending laterally from the aforesaidframe, a spindle mounted in the lat ter'frame, an arm carried on said sundie, a

rimrotatably supported on said frame concentric with saidspindle, cuttermembers ex tending radially between said arm and rim, means for drivingsaid rim and said arm in unison, a motor, a gear train operated by saidmotor having a pinion meshing with gear teeth on saidrim, and a train ofgears operatively connecting said spindle with said motor to operatesaid. spindle at a speed synchronous with that of the rim.

12. Means for cutting plastic substances, comprising the combinationwith means for feeding a strip of plastic material to be cut, of aconveyer adapted to receive the moving strip of plastic material, saidconveyer having a gap intermediate of its length, means for driving saidconveyer, means for regulating the speed of said driving means inaccordance with the speed of movement of the strip of plastic material,a frame adjustably mounted adjacent to the gap in said conveyor, arotatable cutter mounted in said frame and having its cutting membersmoving obliquely through the gap in said conveyor, said frame beingadjustable to vary the obliquity of said cutter.

18. Means for cutting plastic substances, comprising the combinationwith means for feeding a strip of plastic material to be cut, of a framemovable longitudinally of the fed strip, a conveyor supported on andmovable longitudinally relative to said frame and supporting the stripof material while being cut, and a rotatable cutter mounted on saidmovable frame and intersecting the path of travel of said plastic strip.

14-. Means for cutting plastic substances, comprising the combinationwith means for cding a strip of plastic material-to be cut,

lb of a frame movable lo tudinally of the fed ip, a rotatable cuttermounted on said movable frame and inlerr" the path of travel of saidplastic s conveyor belt mounted on said frame, means for operating saidcon or belt, and means controlled by the longitudinal movement of saidframe for controlling the relative speed of travel of said belt and fedplastic strip.

15. Means for cutting plastic substances, comprising the combinationwith n'ieans for to ng a strip of plastic material to be cut, a framemovable longitudinally of the fed strip, a rotatable cutter mounted onsaid movable frame and interi'eecting the path of travel of F id zsticstrip, a conveyor belt mounted on said '1' me, means for operat ng saidconveyor belt, and means controlled by the longitudinal movement of saidframe for contolling the speed of o ieration relative to the ed oftravel of the fed plastic strip.

16. lvleaus for cutting plastic substances, comprising the combinaii'mwith means for f.. i ng a strip of plas n'iaterial to be cut, of a framemovable long rudinally of the fed strip, a rotatable cutter mounted onsaid movable frame and int-er: en in the path of travel of said plasticstrip, a conveyor belt mounted on said "rame, means for operating saidconveor belt, and means for equalizing the speed c t travel of saidconveyor belt with the speed of travel of said fed plastic strip.

1?. llleans for on ing plastic substances, wmprising the combtion withmeans for line a strip of plat material to be cut, triage displaccablelongitudinally of. the fed strip, a convey mounted on said carriaadapted to receive the moving strip t plastic material, said conveyer:having a gap intermediate of its length, means mo-unted on saidcarriage for driving said conveyor, a rotatable cutter mounted on saidcarriage and adapted to cutthrough the fed strip of plastic material atthe gap in said conveyor, means for rotatlng said cutter, and meansactuatedby the longitudinal dlsplacementor said carriage for controllingthe operation of said cutter and conveyor driving means.

18. Means for cutting plastic substances comprising the combination Withmeans for feeding a strip of plastic material to be cut, of a carriagedisplaceable longitudinally of the fed. strip, a conveyer mounted onsaid carriage adapted to receive the moving strip of plastlc material,said conveyer having a gap intermediate of 1ts length, means mount ed onsaid carriage for driving said conveyer,

a rotatable cutter mounted on said carriage and adapted to cut throughthe fed strip of plastic material at the gap in said conveyer, saidcutter being operatively connected with said conveyer driving meanstooperate in unison therewith, and means actuatedby the longitudinaldisplacement of said carriage for controlling the operation of saidconveyer driving means. i

RUDOLF n. DELAMERE.

